//
// Created by jsjxsy on 2022/6/30.
//
#include <stdio.h>
#include <time.h>
int main() {
  time_t seconds;
  time_t t;
  seconds = time(&t);
  printf("seconds = %ld\n", seconds);
  printf("t = %ld\n", t);
  printf("自 1970-01-01 起的小时数 = %ld\n", seconds/3600);
  return 0;
}